/* Section Styles */
.section-padding {
	padding: var(--space-section) 0;
}

.section-header {
	margin-bottom: var(--space-5);
}

.section-title {
	font-size: var(--text-2xl);
	margin-bottom: var(--space-2);
}

.section-subtitle {
	color: var(--color-text-light);
	font-size: var(--text-lg);
}

.bg-light {
	background-color: #f9f9f9;
}

.bg-primary {
	background-color: var(--color-primary);
}

.text-white {
	color: #fff;
}

.text-white .section-subtitle,
.text-white p {
	color: rgba(255, 255, 255, 0.9);
}

/* Hero Slider */
.hero-slider {
	position: relative;
	height: calc(100vh - 80px);
	min-height: 500px;
	overflow: hidden;
}

.hero-slide {
	position: absolute;
	top: 0; left: 0; width: 100%; height: 100%;
	background-size: cover;
	background-position: center;
	opacity: 0;
	transition: opacity 1s ease-in-out;
	z-index: 1;
}

.hero-slide.active {
	opacity: 1;
	z-index: 2;
}

.hero-overlay {
	position: absolute;
	top: 0; left: 0; width: 100%; height: 100%;
	background: linear-gradient(to right, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.3) 100%);
}

.hero-content {
	position: relative;
	z-index: 3;
	height: 100%;
	display: flex;
	flex-direction: column;
	justify-content: center;
	color: #fff;
	max-width: 800px;
}

.hero-subtitle {
	font-size: var(--text-lg);
	text-transform: uppercase;
	letter-spacing: 2px;
	color: var(--color-accent);
	margin-bottom: var(--space-2);
}

.hero-title {
	font-size: var(--text-hero);
	color: #fff;
	margin-bottom: var(--space-4);
	line-height: 1.1;
}

.hero-actions {
	display: flex;
	gap: var(--space-3);
}

/* Project Filter */
.project-filter-tabs {
	display: flex;
	justify-content: center;
	flex-wrap: wrap;
	gap: var(--space-2);
	margin-bottom: var(--space-4);
}

.filter-tab {
	background: none;
	border: 1px solid var(--color-border);
	padding: var(--space-2) var(--space-4);
	border-radius: var(--radius-sm);
	cursor: pointer;
	font-weight: 500;
	transition: all 0.2s ease;
}

.filter-tab.active, .filter-tab:hover {
	background: var(--color-primary);
	color: #fff;
	border-color: var(--color-primary);
}

/* floating CTA */
.floating-cta {
	position: fixed;
	left: 20px;
	bottom: 20px;
	z-index: 999;
	display: flex;
	flex-direction: column;
	gap: 10px;
}

.f-cta-btn {
	width: 50px;
	height: 50px;
	border-radius: 50%;
	display: flex;
	align-items: center;
	justify-content: center;
	color: #fff;
	box-shadow: var(--shadow-md);
	transition: transform 0.2s ease;
}

.f-cta-btn:hover {
	transform: translateY(-3px);
	color: #fff;
}

.f-cta-phone { background-color: #28a745; }
.f-cta-zalo { background-color: #0068ff; }
.f-cta-messenger { background-color: #0084ff; }